Abstract: A pair of U-shaped or V-shaped collar members of hardened steel are adapted to be lockingly interengaged about a propeller blade of an aircraft propeller to provide an anti-theft device for the aircraft by providing an unbalanced propeller condition in response to starting the aircraft engine. A flag of resilient material depends from the device to alert unauthorized personnel of the latter and to remind authorized personnel to remove the device before starting the aircraft engine.

Abstract: A theft preventing device comprises: a lock unit 11; and a coupling member 12 having both terminals 12a and 12b which are connected to the lock unit 11, at least one of the terminals being separable from the lock unit. In the device, the inside of the coupling member 12 is filled with a fluid including adhesive material, so that, when the coupling member 12 is damaged, the fluid is splashed out of the coupling member 12 whereby the adhesive material is stuck onto an object or objects around the device. Hence, from detection of the adhesive material, it can be determined who has broken it, and it can be confirmed that the lock unit has been locked.

Abstract: A padlock concept consisting of a novel shackle comprised of two tapered shackle elements arranged so that they overlay each other to enclose and opening sufficient to accept the sample of a hasp or attachment device. The shackle elements are connected at one end and when unlocked and unlatched are free to move apart, in a motion causing the two shackle elements to separate, providing a clearance between them, at the unconnected end. Each shackle element includes an opening to allow the staple of the hasp to pass to the common opening. This clearance occurs in opposing elements so that when the elements are brought together or closed the staple of the hasp is completely enclosed by the two shackle elements which substantially fill the space available within the hasp staple. The elements are then latched and locked to provide the security function of a padlock engaged with the staple of a hasp or attachment device.

Abstract: A padlock concept consisting of a novel shackle comprised of two tapered shackle elements arranged so that they overlay each other to enclose and opening sufficient to accept the staple of a hasp or attachment device. The shackle elements are connected at one end and when unlocked and unlatched are free to move apart, in a motion causing the two shackle elements to separate, providing a clearance between them, at the unconnected end. Each shackle element includes an opening to allow the staple of the hasp to pass to the common opening. This clearance occurs in opposing elements so that when the elements are brought together or closed the staple of the hasp is completely enclosed by the two shackle elements which substantially fill the space available within the hasp staple. The elements are then latched and locked to provide the security function of a padlock engaged with the staple of a hasp or attachment device.

Abstract: A lock and keeper assembly are employed to secure a pickup truck tailgate against theft. A conventional keeper is modified by flattening its bight region. The flattened bight is placed into capturing relation to a transversely disposed, inwardly extending protrusion formed in a side wall of the pickup truck adjacent the tailgate. A transversely disposed, outwardly extending hollow, "C"-shaped axle integral with the tailgate receives the protrusion, so the flattened bight and the lock body cooperate to trap the protrusion within the hollow axle. The hollow axle cannot be separated from the protrusion without first defeating the lock.

Abstract: A snowmobile track lock having a generally U-shaped track member interconnected with a lock body. The track member is fitted over the snowmobile track and secured in place by the interconnected lock body. A handle extends from the track member to facilitate installation of the track lock. Additionally, a flag is mounted to the track lock to remind the operator to remove the track lock before operating the snowmobile.

Abstract: An alarm padlock (10) comprising a shackle (12) having a long leg (14) and a short leg (16). A body (18) is provided. A facility (20) in the body (18) is for mounting the shackle (12) in a reciprocal movement between a closed position and an extended open position, in which the short leg (16) of the shackle (12) is outside of the body (18) and the long leg (14) of the shackle (12) can swivel within the body (18). A latch mechanism (22) in the body (18) engages with the short leg (16) of the shackle (12), when the shackle (12) is in it's closed position. A lock mechanism (24) in the body (18) is operable to disengage the latch mechanism (22) from the short leg (16) of the shackle (12). An alarm circuit (26) in the body (18) actuates to emit a warning signal when an unauthorized person violates and tampers with the shackle (12) and the body (18).

Abstract: The present invention provides a locking device for motorcycle which includes a lock barrel and a collapsible latch hook. The latch hook is composed of two feet in that the upper portions are bent segments and the the bottom portions are vertical segments, and the two feet can pivot on a vertical trunnion horizontally. The feature of the present invention is that the two feet have a corresponding diversity bending angle on the bent segments so that the shafts of the feet close together as standing side by side.

Abstract: A padlock comprises a body and a shackle capable of rotating freely. The body is provided therein with a dial set having a plurality of the numbered wheels mounted on a shaft rod capable of an axial displacement. The shackle is provided with a neck fastened pivotally with the body. The neck is provided at the bottom thereof with a through hole extending along the axis of the neck and engageable with the shaft rod. The shackle is further provided with a hooked portion and a retaining member fastened pivotally thereto between the neck and the hooked portion. The hook portion is provided with a cut which is pressed against by one end of the retaining member. The top end of the shaft rod is pressed against by another end of the retaining member.

Abstract: A motorcycle lock consists of a housing containing a lock in an intermediate portion and two deadbolt bases in two lengthwise ends, two deadbolts on the deadbolt bases, an upper rotatable disc on the lock and a shackle. The shackle has two feet able to be inserted in two shackle holes in the housing and coil spring holes in the deadbolt bases and then separately locked by the deadbolts by rotating a key inserted in the lock. In unlocking the key is used to rotate the lock to free the two deadbolts from the two feet of the shackle.

Abstract: A combination lock comprises a lock seat, a dial set, a sliding seat, a lock tongue, a resilient block, a lock seat cover, and a shackle having a movable end and a fixed end. When the dial set is turned to a set series of numbers to work the mechanism that opens the lock, the stopping rod of the dial set is not obstructed by the dial so as to enable the fixed end of the shackle to actuate the sliding seat. The movement of the sliding seat can bring about the displacement of the lock tongue without obstructing the movable end of the shackle, thereby enabling the movable end of the shackle to be ejected by the resilient block. When the set series of numbers is disturbed, the stopping rod of the dial set remains stationary such that the sliding set is urged by the stopping rod, and that the sliding seat can not be moved by the fixed end of the shackle.

Abstract: A padlock concept consisting of a novel shackle comprised of two tapered shackle elements arranged so that they overlay each other to enclose and opening sufficient to accept the staple of a hasp or attachment device. The shackle elements are connected at one end and when unlocked and unlatched are free to move apart, in a motion causing the two shackle elements to separate, providing a clearance between them, at the unconnected end. Each shackle element includes an opening to allow the staple of the hasp to pass to the common opening. This clearance occurs in opposing elements so that when the elements are brought together or closed the staple of the hasp is completely enclosed by the two shackle elements which substantially fill the space available within the hasp staple. The elements are then latched and locked to provide the security function of a padlock engaged with the staple of a hasp of attachment device.

Abstract: A shackle lock comprises a body, a first shackle, a second shackle, and two holding bodies. The first shackle is engageable at both ends thereof with two insertion holes of the body while the second shackle is engageable at both ends thereof with the two holding bodies, which are provided respectively with an axial hole in which the body is held. The two holding bodies are further provided with two oblong through holes corresponding in location to the insertion hole of the body. The two oblong through holes of the holding body are opposite in location to each other. One of the two oblong through holes of each of the two holding bodies is engageable with the first shackle.

Abstract: A lock includes a plurality of rod-shaped elements which are connected at their ends by pivots, which lock is closable into a loop by a security lock. The pivots include movable parts which are housed within a protective casing. Each rod-shaped element is rotatable about its longitudinal axis relative to the casings.

Abstract: A linkage lock device is provided for fastening objects having either regular or irregular shapes. The lock is composed of a plurality of identical arcuate bars having opposing ends of each bar pivotally connected to an end of another one of the bars to form a chain. One of a pair of free ends is formed to receive a lock mechanism which releasably secures the other free end to form a closed loop to encompass the object being secured against theft. Each pivotal coupling is formed by a pin secured through hardened washers into which the ends of the pin are received.

Abstract: A hinged locking mechanism for use, in its most preferred embodiment, on an existing storage door hasp assembly, which hinged locking mechanism includes a case element hinged to a frame element having two frame pins for insertion into shank apertures defined by flange members of the existing hasp assembly. The case element includes a lock and a frame cavity for selectively concealing the frame element and the flange members.

Abstract: An inexpensive, easy to manufacture security device for bicycles with a telescoping U-shaped shackle which collapses sufficiently to store the lock within the frame of a small frame bicycle and capable of telescoping sufficiently to be effective in having the U-shaped shackle pass through the bicycle wheel, frame and around a stationary object. The ends of the shackle are secured by inserting into two side holes in a tubular lock bar. One end of the shackle possesses a round lateral pocket which passes over a retainer inside the lock bar to prevent removal of the shackle. The other end of the shackle possesses a square notch which engages a key actuated lock core. The shackle can be adjusted for length when secured by the lock bar or with the bar removed.

Abstract: A cuff lock is provided. The cuff lock includes a pair of arcuate rod members having one end of each pivotally secured together. The opposing end of one rod member is affixed to a lock mechanism through a sleeve. The opposing end of the other rod member is releasably engaged by a rotatable latch of the lock mechanism through the sleeve.

Abstract: A joint lock with improved structure is disclosed. The joint lock includes a steel rope wire, a latching member for latching the steel rope wire in position, a bendable covering sleeve for covering the steel rope wire, and a lock device. The lock device is composed of a locking member and a locking plug, in which the locking member is fixed on one end of the rope wire and the locking plug is fixed on the other end of the rope wire. The latching member is composed of a plurality of fork chucks and a latching ring having its inner diameter slightly larger than the outer diameter of the steel rope wire and being slidable along the rope wire. The fork chucks is a flexible outward fork-like structure in order to engage with the inner wall of the covering sleeve. The covering sleeve is composed of a plurality of joint units for covering the rope wire so that the rope wire is bendable correspondingly when the covering sleeve is bent.

Abstract: A locking apparatus for vehicles of the present invention is constituted by a rigid lock body and a hook. The hook is connected to the lock body in a ring shape such that, at least one end thereof can be separated from the lock body. The lock body includes a moving plate which engages with and disengages from the separating end side of the hook, responding to the external operation for unlocking and locking, and an operating shaft capable of reciprocating in an interlocking fashion with the moving plate. On the operating shaft, a plurality of dials are respectively disposed rotatably via bushes. Between the dials and the bushes, an unlocking code sequence setting mechanism for setting an unlocking code sequence freely is formed, and between the operating shaft and the bush, a lock mechanism is formed.

Abstract: A lock is provided having a thick U-shaped shackle, a transverse housing for receivably locking extending ends of the shackle, a pair of longitudinal members which lockably intersect the shackle ends and which are actuated by a lock protected within the intermediate portion of the housing. In an exemplary embodiment of the lock, the shackle and housing are constructed of substantially thick tubular metal, and the shackle ends may be conformed to openings in the housing. The longitudinal members may be extended post members which intersect inserted shackle ends or may be forked members which slidably engage flat portions on inserted shackle ends. The locking mechanism may be activated through a rack-and-pinion, cam-and-pin, or hook-and-pin assembly, and may further comprise shackle ends having flat sections conformed to the housing openings to prevent rotation.

Abstract: A combination padlock with an improved rocker assembly as looking control device. The combination padlock contains a slide plate, a rocker assembly, a shackle, a predetermined number of numbered wheels, and a plurality of wheel sleeves respectively matching the numbered wheels. The slide plate is provided with a predetermined number of semicircular holes, each of the semicircular holes is adapted for receiving a spring and one of the wheel sleeves. An oblong hole is located between two of the semicircular holes, each of the semicircular holes is further provided with an angled flange corresponding in angle and dimension to a notch provided in each of the wheel sleeves. When a correct combination is dialed, the notches match the angles and the lock is unlocked. The rocker assembly contains a rocking hole, a retaining bar, and a rocking shaft.

Abstract: A combination padlock includes: a plurality of magnifying lenses juxtapositionally mounted on a lock body of the padlock with each lens projectively corresponding to each numeral formed on each dial so that the numeral formed on each dial can be magnified by each magnifying lens for a clear reading by a user's eyes; and a hasp pivotally mounted in a side portion of the lock body of the combination padlock having an arcuate hook member operatively lockable with a hasp socket recessed in a projecting portion extending upwardly sidewardly from the lock body in an opposite direction of the arcuate hook member of the hasp for locking an object or a staple within the hasp with a wider angular movement of the hasp. The lock can be conveniently operated with one hand to not only rotate the dials and lock and unlock the hasp, but also to move the hasp into its fully open or locked positions.

Abstract: A hinged locking mechanism for use, in its most preferred embodiment, on an existing storage door hasp assembly, which hinged locking mechanism includes a case element hinged to a frame element having two frame pins for insertion into shank apertures defined by flange members of the existing hasp assembly. The case element includes a lock and a frame cavity for selectively concealing the frame element and the flange members.

Abstract: A simple bicycle lock structure which comprises an outer cylinder and a shackle; one end of the outer cylinder is mounted with a locking assembly, while the other end thereof is mounted with an outer-cylinder-positioning assembly, in which a movable sleeve has a through hole, being perpendicular to a pin hole; the through hole is in communication with a round hole on the outer cylinder. The shackle has a rotary section which is perpendicular to the shackle body; the rotary section includes a circular groove and a symmetrical groove; after the rotary section is inserted in the movable sleeve, a fixing pin will be engaged with the rotary section in a pivotal manner. Other end of the shackle has a locking section with a locking groove and a bevel facet. As soon as the locking section is inserted into a round hole on the outer cylinder, the locking section will be engaged with the locking assembly to become locked up.

Abstract: A labelled padlock has a body circumscribed by a heat shrunk plastic sleeve displaying a notice. The notice can be imprinted on a hermetically sealed label adhesively affixed to the body of the padlock before a transparent sleeve is applied, or on a surface of the sleeve itself.

Abstract: An improved padlock comprises a lock body and a shackle. The lock body is provided with a tubular bushing containing a rotating rod capable of being actuated by a lock core. The shackle comprises two insertion ends having retaining grooves. As shackle is inserted into the lock body, the retaining grooves engage securely the rotating rod of the lock body to complete the locking process. The unlocking process is accomplished by actuating the rotating rod to disengage the retaining grooves of the shackle.

Abstract: A lock device includes a hollow cylindrical rod body with two retaining holes. The rod body has a closed end and an open end. A key plug assembly includes a tubular outer housing fixed in the open end of the rod body, and a push rod extending through the outer housing and movable in the outer housing between an unlocking position, where a portion of the push rod extends from the outer end of the outer housing, and a locking position, where the push rod extends from the inner end of the outer housing. In the rod body, a resilient element pushes a locking plate assembly toward the key plug assembly. When the push rod is pushed inward and is locked in the locking position in the outer housing, the resilient element is compressed between the locking plate assembly and the end wall of the rod body so that two notched lock bars extend through the retaining holes and the small-sized portions of the locking holes in the locking plate assembly, thereby preventing removal of the lock bars from the rod body.

Abstract: A piece of jewelry having a body with chain engaging means for releasably engaging at least one end of a chain, and a lock for locking the end of the chain in the chain engaging means and for receiving a separate key to unlock the chain engaging means, to permit removal of the end of the chain.

Abstract: A steering lock with a lock body having an attached extensible member for adjusting the distance between two locking rods which are connected in parallel through a telescopic tube to form a shackle. The shackle can be extended when clearance is required, and is coupled with a pair of hook-shaped fastening rods which are connected in parallel through another telescopic tube for fastening to the steering wheel. When a lock barrel of the lock body is rotated to a locking position, the first and second latches inside the lock body lock up the locking bars and the extensible member. Two protective cover boards are bilaterally attached to the lock body to prevent insertion of a tool to cut the second latch and prevent injury to fingers during the locking and unlocking operation.

Abstract: The invention provides a lock having a thick U-shaped shackle, a transverse housing for receivably locking extending ends of the shackle, a pair of longitudinal members which lockably intersect the shackle ends and which are actuated by a lock protected within the intermediate portion of the housing. In an exemplary embodiment of the invention, the shackle and housing are constructed of substantially thick tubular metal, and the shackle ends may be conformed to openings in the housing. The longitudinal members may be extended post members which intersect inserted shackle ends or may be forked members which slidably engage flat portions on inserted shackle ends. The locking mechanism may be activated through a rack-and-pinion, cam-and-pin, or similar assembly, and may further comprise shackle ends having flat sections conformed to the housing openings to prevent rotation. The compact and integral design affords improved resistance to tampering such as by shattering or cutting/twisting methods.

Abstract: An improved padlock having a main, generally rectangular case with walls that enclose a locking mechanism, and including a top wall with at least one shaft-receiving bore, and the case having side wall portions that extend upwardly beyond the case top wall and surround the at least one bore, and the top wall having a portion that is shaped for grasping. A latching head is disposed above the main case to which it is connected by at least one shaft extending from the latching head through the at least one bore for lockable engagement with the locking mechanism. The upwardly extending wall portions of the case slidably embrace the outer surface of the latching head to shield the at least one shaft and to guide the latching head in limited vertical movement from a padlock open position, in which a shaped portion of the latching head lower wall is spaced apart from the shaped portion of the case top wall, to a locked position in which these shaped portions are brought together.

Abstract: A locking device for securing a bicycle to a pole, post, bar or other stanchion is provided. The lock includes a shackle, formed from a bar of metal stock bent around itself forming a pair of parallel legs connected at one end open ended at the other end. The parallel legs are bent in a U-shape to form a shackle with legs connected at one end and open at the other. A cross bar, fitted with a locking mechanism includes holes adapted to receive the two open ends of the shackle. With each end of the shackle leg slated for forming a latch slot, a double tongue sliding latch supported in the cross bar engages the latch slots for locking the cross bar to the shackle.

Abstract: A locking device particularly useful for locking a motorcycle, bicycle or other movable object to a fixed object, comprises a shackle including a pair of rigid, cylindrical bars of strong material pivotally mounted to each other at one end and terminating opposite to the pivotal mounting in a pair of free, inwardly-bent, straight end. The free inwardly-bent ends of the bars are a small fraction of the length of the remainder of the bars and are joined thereto by integrally formed angled junctures. The locking device further includes a locking mechanism enclosed within a housing formed with a pair of openings for receiving the free ends of the shackle bars thereby to lock them to the housing.

Abstract: A shackle-equipped lock with shielded shackle includes a housing enclosing a locking mechanism and a top wall with first and second bores therein. There is a shackle comprising a shaft and an inverted, generally U-shaped clasp, with the shaft lower end adapted for making locking engagement within the first bore and its upper end making a hinge joint with a first end of the clasp. The other end of the clasp is adapted for making locking engagement within the second bore, and in an unlocked condition the clasp is pivotable at the hinge about an axis which is perpendicular to the plane in which the shackle generally lies. A protective shield having a front wall, rear wall and spaced apart side walls, extends upwardly from the housing top wall, and surrounds the bores, and the front wall is spaced sufficiently from the second bore to allow the unlocked lower end of the clasp to pass when it is pivoted open.

Abstract: A sliding shackle padlock for securing an outwardly opening door or closure provides a tapered shackle for cooperatively engaging the staple of a hasp or another fastening member on the door or closure, which may be removably secured to a door jamb. A protective cover is provided to conceal the locking arrangement between the tapered shackle and the staple or other fastening member. A ratchet arrangement or a spring clip arrangement is utilized to maintain the shackle in the shackled position within the staple or other fastening member.

Abstract: A lateral extension of a shackle end and a lock body securely engage a hasp therebetween. Broadening the shackle end or tapering the shackle provides lateral extension. A shroud or encasement around the hasp, shackle and lock body provides additional security. A sliding shroud with attached shackle fits over the lock body encasement. Alternately, an extension of the lock body encasement itself serves as a shroud with a removable shackle, or a swing plate covers the hasp. Pivoting or rotating arms may secure the shackle to the lock body. Close contact with the hasp and encasement protects against tampering.

Abstract: A padlock comprises a battery-powered, built-in alarm which operates when the padlock's shackle is severed or forced open. The battery and alarm can be tested by opening the lock with a key, rotating the short leg of the shackle away from the lock body and then depressing the shackle, or optionally, by depressing the short leg. The alarm is turned on in response to the momentary closing of a switch when one shackle leg moves outwardly upon severance or forcible opening. The alarm may be an audible signal or an inaudible signal transmitted as a radio wave to a remote receiver at which an audible or visible signal is actuated. The audible signal generated at the lock escapes from the lock body through sound ports. Both audible and inaudible signals may be generated at the lock simultaneously.

Abstract: A conventional barrel-type combination lock receives a lock element extending from a safety pin housing. The safety pin housing pivotally receives a pin that pivots between an open position and a closed position relative to the safety pin housing, and the lock element of the barrel-type combination lock is moved to the locked position, the end of the pin is positioned within a pin receiving recess on the barrel-type combination lock so that the pin is locked in the closed position. A conventional chain formed from a series of interlocking links is utilized with the lockable safety pin to enable small articles to be locked to fixed objects. When the chain is not in use, it is stored within a cylindrical chain storage container that is threadedly received upon the end of the barrel-type combination lock.

Abstract: A conventional barrel-type combination lock receives a lock element extending from a safety pin housing. The safety pin housing pivotally receives a pin that pivots between an open position and a closed position. When the pin is placed in the closed position relative to the safety pin housing, and the lock element of the barrel-type combination lock is moved to the locked position, the end of the pin is positioned within a pin receiving recess on the barrel-type combination lock so that the pin is locked in the closed position. A conventional chain formed from a series of interlocking links is utilized with the lockable safety pin to enable small articles to be locked to fixed objects. When the chain is not in use, it is stored within a cylindrical chain storage container that is threadedly received upon the end of the barrel-type combination lock.

Abstract: Push-button type steering wheel lock, incorporating two columns of a number of push keys, facing each other, and each provided with an identification code, and mounted on the keyway provided centrally in a vertically installed slider and in a counterpart groove respectively, the slider flanked by aligned projections on both sides to achieve transmission of the slider through engagement with correspondingly shaped cavities provided on a base plate. An L-shaped detent attached on one side of the slider is employed to engage with the bullet-like detent at the annular groove, which is biased by a spring attached at the end thereof to move to and fro, thereby achieving locking and unlocking of the object.

Abstract: A lock of the type preferably used with sliding doors having first and second elements constituted by solid cast material, the first element having a head disposed at one end thereof with a recess and a cavity therein. The second element is rotatably mounted at one end thereof to the first element such that the other end of the second element may be rotated into and out of the recess in the head of the first element. The second element also has a cavity therein which aligns with the cavity of the first element when the lock is closed. The cavity in the second element has a channel located in a wall of the cavity. A locking element is movably disposed in the cavity of the first element and is movable into and out of engagement with the cavity of the second element. The locking element has a locking device disposed offset from the geometric center, and preferably eccentrically, of the locking element.

Abstract: A locking device with a main body member having a threaded bore therein adapted for screwing onto the axle bolt of a bicycle, a securing member for shackling the main body member to an adjacent frame member of the bicycle, and a lock device for locking the securing member to the main body member. The main body member also includes an annular collar protruding axially therefrom in radially spaced concentric relation to the axis of the threaded bore for extending concentrically over the axle nut of the bicycle.

Abstract: A padlock is provided with a straight length of the shackle adapted to be received in the socket of the lock with a reduced diameter to fit within the holes in the live tines of a standard electrical plug so that the plug may not be inserted into an electrical outlet.

Abstract: A lock arrangement for application to a brake disc of a motorcycle wheel.

Abstract: A combination lock of the exposed shackle type is disclosed, including means for locking and protecting internal mechanism against tampering and means to foil unauthorized access through improved pivotally offset latch hooks that function independently to tighten into shackle notches and eventually wedge behind provided lugs on the case when latched shackle is pulled outwards. A spring loaded plunger co-operating with a reciprocal center mounting plate having an unlocking bar, a safety unlocking spring and a return locking spring. A central mounting and guide post with square tumbler shaft extending up into a center guide hole in the dial. A plurality of frictionally held combination changeable tumblers assembled upon said square shaft with sequential driving means between dial and tumbler hubs bypassing non-rotatable tumbler separating spacers; each tumbler having a gate at it's periphery to receive a provided fence.

Abstract: This invention relates to an improved waterproof case for padlocks and, more specifically, to a means for sealing the apertures in such a case at the points where the legs of the shackle enter the latter, such means comprising a self-centering flexible tube loosely fitting the shackle and with the ends thereof engaging either the lid of the case directly or an O-ring seal interposed therebetween to maintain a continuous annular fluid-tight seal around the aforementioned shackle-receiving openings when the shackle is closed and locked. In those versions where the tube ends engage the lock case lid directly to effect the seal, an upstanding annular rib terminating in a feathered edge that functions to enter and flare the tube end and, in so doing, form a fluid-tight annular seal therewith.

Abstract: The present invention relates to a padlock designed for application in the locking of sliding doors with two panels that meet by their butt ends or vertical edges, which are held fast to one another by the padlock itself, being constituted by two flat bodies formed by a variable number of platens super-imposed and joined with respect to one another by means of rivets in such a way that the said bodies have an exterior quadrilateral zone, which is extended in convergent form to terminate in a semicircular shape at its opposite end, thus originating a number of flat and lengthened bodies that are arranged according to parallel and spaced planes; provision having been made for the connection of the said bodies to be effected through the semicircular end zone of the said bodies, by virtue of a shaft common to both, which shaft is fixed and without movement, causing one of the bodies to be fixed while the other is mobile and rotates around the said shaft, the said mobile body having a cylindrical housing in its qu

Abstract: This invention relates to a watertight seal for padlock shackles to be used in combination with a waterproof cover therefor, such seal comprising a pair of continuous annular downwardly-facing abutments on the legs of the shackle cooperating in the closed position of the latter with the opposed surfaces of the lock cover to define an annular gap sized and adapted to receive and compress an O-ring seal encircling the shackle legs. In one form of the invention, annular grooves in the shackle legs receive inturned annular ribs on removable collars to maintain the latter in fixed position whereas, in a second form, this same objective is achieved by ear-like stops on the shackle itself. In yet another form, the shackle-receiving openings in the lid of the lock cover are bordered by annular grooves sized to receive and retain the O-rings. In the preferred form of the invention the shackle-receiving openings in the lock cover lid are oversized to loosely receive the shackle legs.

Abstract: A padlock of the type having a removable locking plug or cylinder capable of being removed from the top through a top opening in the lock case, also has a cap for the top opening. This cap is locked into the padlock case by a loose ball fitting in a groove in the cap and in the case. This cap locking ball is in addition to two other conventional locking balls used to lock the shackle in one conventional type padlock. The shackle is retained by another ball which is carried by a shackle leg and cooperates with another groove in the case. The shackle locking ball is placed in or out of locking position by adjustment of a set screw in the shackle leg.